– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 3 am Sun 28 Dec Local TimeUpdates in: hr min sUpdate imminent
Issued: 3 am Sun 28 Dec Local Time
Updates in:
Update imminent hr min s
Issued: 3 am Sun 28 Dec Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryMostly dry. Freeze-thaw conditions (max 9°C on Tue morning, min -1°C on Sun morning). Wind will be generally light. | Days 4–6 Weather SummaryLight rain (total 6mm), mostly falling on Thu night. Very mild (max 10°C on Wed morning, min 5°C on Thu night). Wind will be generally light. | |||||||||||||||||
Sunday 28 | Monday 29 | Tuesday 30 | Wednesday 31 | Thursday 1 | Friday 2 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | |  | | | | |  | | | |  |  | |  | |
some clouds | cloudy | some clouds | some clouds | some clouds | clear | some clouds | some clouds | some clouds | some clouds | clear | some clouds | cloudy | cloudy | light rain | rain shwrs | some clouds | rain shwrs | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 0.3 | — | 1.1 | |
max °C | 2 | 1 | 1 | 5 | 4 | 4 | 9 | 7 | 6 | 10 | 8 | 7 | 9 | 7 | 6 | 9 | 8 | 7 |
min °C | -1 | 1 | 0 | 4 | 4 | 2 | 7 | 6 | 6 | 8 | 7 | 7 | 8 | 6 | 5 | 7 | 8 | 6 |
-1 | 1 | 0 | 4 | 4 | 2 | 7 | 5 | 6 | 8 | 6 | 7 | 8 | 5 | 3 | 6 | 8 | 4 | |
350 | 800 | 700 | 1750 | 1950 | 2900 | 3050 | 3100 | 3050 | 2950 | 3100 | 3150 | 2950 | 2450 | 1500 | 1850 | 2050 | 2250 | |
Cloud base (m) | 900 | 800 | 800 | 850 | 900 | 600 | 6000 | 900 | 5700 | 6100 | 600 | 6300 | 5500 | 1950 | 600 | 1450 | 3050 | |
 | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — |
 | — | 4:17 | — | — | 4:19 | — | — | 4:20 | — | — | 4:21 | — | — | 4:22 | — | — | 4:22 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mostly dry. Freeze-thaw conditions (max 9°C on Tue morning, min -1°C on Sun morning). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Light rain (total 6mm), mostly falling on Thu night. Very mild (max 10°C on Wed morning, min 5°C on Thu night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.